Door Window And Screen Repairs

Cosmo Window & Door provides building materials such as windows, doors, skylights, molding, trim, railing systems, columns and posts, and more with manufacturer warranties in Lindenhurst, NY, and the surrounding area.

For 35 years we have been installing windows and doors. Licensed and insured, you can be sure that your job will be done right. Our Sales Staff is the most knowledgeable in the industry. Whether it is a home addition or a historic building, our staff has the expertise to supply you with exactly what you need.